Seiko Cal. 4427 - 250

The Seiko 4427-250 represents an important milestone in Seiko's 1989 lineup. Powered by the 4427 caliber with 19j jewels beating at 28,800 bph, it delivers a 36 hours power reserve. [seikata-wm-c9939ceba06d]

Also known as: Monster, Arnie

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

42mm

Case Thickness

9.7mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

Blue Sunburst

Jewels

19j

Frequency

28,800 bph

Power Reserve

36 hours

Year

1989

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